/*
 * This file is part of Sponge, licensed under the MIT License (MIT).
 *
 * Copyright (c) SpongePowered <https://www.spongepowered.org>
 * Copyright (c) contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.spongepowered.common.event.tracking.context.transaction;

import com.google.common.collect.ImmutableList;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.checkerframework.framework.qual.DefaultQualifier;
import org.spongepowered.api.event.Cancellable;
import org.spongepowered.api.event.Event;

@DefaultQualifier(NonNull.class)
final class EventByTransaction<T extends Event & Cancellable> {

    final T event;
    final ImmutableList<GameTransaction<T>> transactions;
    final GameTransaction<T> decider;
    final @Nullable GameTransaction<@NonNull ?> parent;

    EventByTransaction(final T event,
        final ImmutableList<GameTransaction<T>> transactions,
        final @Nullable GameTransaction<@NonNull ?> parent,
        final GameTransaction<T> decider
    ) {
        this.parent = parent;
        this.event = event;
        this.transactions = transactions;
        this.decider = decider;
    }

    public void markCancelled() {
        this.decider.markCancelled();
        for (GameTransaction<T> transaction : this.transactions) {
            transaction.markCancelled();
        }
    }

    public boolean isParentOrDeciderCancelled() {
        return this.decider.cancelled || (this.parent != null && this.parent.cancelled);
    }
}
